EP0588769A1 - Planetary reduction gearing - Google Patents

Planetary reduction gearing Download PDF

Info

Publication number
EP0588769A1
EP0588769A1 EP93810640A EP93810640A EP0588769A1 EP 0588769 A1 EP0588769 A1 EP 0588769A1 EP 93810640 A EP93810640 A EP 93810640A EP 93810640 A EP93810640 A EP 93810640A EP 0588769 A1 EP0588769 A1 EP 0588769A1
Authority
EP
European Patent Office
Prior art keywords
satellites
planet
teeth
crown
offset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93810640A
Other languages
German (de)
French (fr)
Other versions
EP0588769B1 (en
EP0588769B2 (en
Inventor
Eric Paul Lagarde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somfy SA
Original Assignee
Somfy SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9433564&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0588769(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Somfy SA filed Critical Somfy SA
Publication of EP0588769A1 publication Critical patent/EP0588769A1/en
Publication of EP0588769B1 publication Critical patent/EP0588769B1/en
Application granted granted Critical
Publication of EP0588769B2 publication Critical patent/EP0588769B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels
    • F16H1/2836—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels by allowing limited movement of the planets relative to the planet carrier or by using free floating planets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19623—Backlash take-up
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19949—Teeth
    • Y10T74/19963—Spur
    • Y10T74/19972—Spur form

Definitions

  • the subject of the present invention is a planetary gearbox comprising at least one stage consisting of an input planetary gear, of satellites mounted radially floating planet carrier secured to an output shaft and to a fixed crown.
  • Planetary reducers generally two or three stages, are used in particular in tubular motors intended for driving blinds, roller shutters or doors. Because of the necessary clearances they present, these reducers are relatively noisy.
  • GB 1 073 535 discloses a planetary gear in which the satellites are mounted floating radially on the planet carrier. The purpose of this construction is to ensure that the satellites adjust themselves to the flanks of the teeth of the crown and the planetary gear. A gear of the same type is also described in the review "EUREKA TRANSFERS TECHNOLOGY" No. 7 of June 11, 1991, page 7. The purpose of the floating assembly of the satellites is here to ensure an optimal distribution of the load between the planet and the crown and ideal alignment of the teeth.
  • the invention aims, on the one hand, to reduce noise and, on the other hand, to increase the load capacity of the reducer by simple means, inexpensive and easy to control.
  • the reduction gear according to the invention is characterized in that the teeth of the meshing elements are offset so that the result of the forces exerted, on the one hand between the crown and the satellites, and on the other hand, between the satellites and the planetary, is directed in a previously chosen direction.
  • the noise is mainly generated between the planet and the first stage satellites of this type of reducer, the noise can be greatly reduced by directing the radial resultant towards the planet.
  • the load carrying capacity of the reducer is increased.
  • the reducer comprises several stages, it will generally be advisable for the radial resultant to be directed towards the planet for the first stage, the noise mainly coming from the first stage rotating at high speed and towards the most fragile element, planetary or crown, for at least the last stage, the torque transmission capacity being limited by that of the last stage. This measure both reduces noise and increases the transmission capacity of the gear unit.
  • the planet carrier is in the form of a barrel comprising two flanges whose opposite faces are crossed by radial grooves in which the axes of the satellites can slide freely.
  • a planet carrier can be obtained from molding, without rework.
  • Figure 1 is an axial sectional view, along I-I of Figure 2, of a planetary gearbox with three stages, associated with tubular electric motor.
  • FIG. 2 is a cross-sectional view along II-II of FIG. 1.
  • Figure 3 shows the operating pressure angles and the pressure forces in the first stage of the receiver.
  • FIG. 4 represents the operating pressure angles and the pressure forces in the last stage of the reducer.
  • a tubular motor is partially distinguished comprising a rotor 1 rotating in a stator 2 fixed inside a cylindrical tube 3.
  • a planetary reducer with three stages 4, 5, 6.
  • each of these stages comprises a sun gear 7 around which rotate three satellites 8, 9, 10 mounted in a planet carrier 11 and meshing with a tubular crown 12 and common to the three stages.
  • This ring 12 is fixed to the tube 3.
  • the sun gear 7 of the first stage 4 is constituted by an extension of the rotor 1, while the sun gears 7 of the following stages 5 and 6 form part of the planet carrier 11 of the preceding stage.
  • the planet carrier 11 of the third stage 6 has an extension 13 constituting the output axis of the reducer.
  • Each of the planet carriers 11 is in the form of a barrel in the form of two parallel circular plates 14 and 15 connected by spacers 16, 17, 18 defining three housings in which the three satellites 8, 9, 10 are respectively housed.
  • the planet carrier 11 has a circular surface 19 cooperating with the top of the teeth of the toothing of the crown 12 to approximately center the planet carrier in the crown 12 during mounting of the reduction gear in order to facilitate the mounting of the planet carrier in the crowned.
  • the satellites 8, 9, 10, preferably made of synthetic material, as well as the crown 12, are each mounted free in rotation on an axis 20 whose ends 21 and 22 have parallel flat faces by which the axis 20 is engaged in two radial grooves 23 and 24 made in each of the plates 14 and 15 of the planet carrier, these grooves opening both inwards and outwards from the plates 14 and 15.
  • the axes 20 can slide freely in these grooves, so that the satellites 8, 9, 10 are mounted floating radially in their planet carrier, the axes 20 of the satellites being however prevented from rotating so that the rotation of the satellites takes place between the satellites and their axes.
  • the teeth of the meshing elements of the reduction gear, that is to say of the planets, the satellites and the crown are offset so that for each of the satellites, the radial result of the forces exerted, on the one hand, between the crown 12 and the satellite and, on the other hand, between the satellite and the planet 7, is directed towards the planet for the first stage, which rotates faster, and towards the most fragile meshing element, in this case the crown 12, for the third floor.
  • said resultant could be directed either towards the planet, or towards the most fragile meshing element, planetary or crown, according to the priority given to the reduction of noise or to the increase of the load, the fact of having floating satellites and a resultant directed towards the planetary having the effect of reducing the noise of the reducer, while the resultant directed towards the most fragile meshing element, in this case the crown, makes it possible to increase the load, that is to say the transmission capacity of the reducer.
  • the satellites of the first stage 4 are naturally pressed against the planet.
  • the noise being generated mainly between the planet and the satellites of the first stage rotating rapidly, it is reduced by the elimination of the game.
  • the satellites of the last stage 6 are on the other hand pressed against the crown 12 and the driving angles between the satellites and the crown have a maximum value which makes it possible to increase the transmission capacity, that is to say the load on the output axis 13.
  • FIG. 3 represents the operating pressure angles ⁇ and the forces P generated by the operating pressure of the teeth in each other, for the first stage 4.
  • the offset teeth and the operating pressure angle ⁇ we will refer for example to G. HENRIOT, THEORETICAL AND PRACTICAL TREATMENT OF GEARS and it will be recalled that the operating pressure angle ⁇ increases if the sum of the offsets of the meshing elements is positive and decreases if the negative offset.
  • the angle ⁇ determines the direction of the operating pressure forces P1, P1 ', P1' 'between the satellites and the crown and P2, P2' and P2 "between the satellites and the planet .
  • the teeth are offset so that for each of the satellites, the radial component R1 of the force P1 is greater than the component R2 of the force P2, that is to say that the resultant of R1 and R2 is directed towards the planetary 7.
  • R1 ' is greater than R2' and R1 '' is greater than R2 ".
  • Figure 4 illustrates the operating pressure angles and the radial components in the top stage of the reducer. It is always accepted that the crown 12 constitutes the most fragile element. In this case, we have R2 greater R1, R1 'greater than R2', R2 '' greater than R1 '', so that the floating satellites 8, 9, 10 are pressed against the teeth of the crown 12.
  • the invention is applicable to a gear unit comprising a single stage or a number of stages other than three.
  • this stage will be considered either as a first stage or as a last stage according to the result considered as priority.
  • the intermediate stages may be produced either as the first stage or as the last stage depending on the result considered to be a priority.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Gear Transmission (AREA)
  • Lock And Its Accessories (AREA)
  • Gears, Cams (AREA)
  • Friction Gearing (AREA)

Abstract

Planetary reduction gearing comprising at least one stage made up of an input planet wheel (7) of spider gears (8, 9, 10) mounted on a spider (11) secured to an output shaft, and of a stationary crown wheel (sun gear) (12). The spider gears are mounted so that they float radially in the spider and the toothing of the meshing elements is offset so that the radial resultant of the forces exerted, on the one hand, between the crown wheel and the spider gears and, on the other hand, between the spider gears and the planet wheel, points either towards the planet wheel so as to reduce the noise of the reduction gearing or towards the weakest element so as to increase the load capacity of the reduction gearing. <IMAGE>

Description

La présente invention a pour objet un réducteur à planétaire comprenant au moins un étage constitué d'un pignon planétaire d'entrée, de satellites montés flottant radialement porte-satellites solidaire d'un arbre de sortie et d'une couronne fixe.The subject of the present invention is a planetary gearbox comprising at least one stage consisting of an input planetary gear, of satellites mounted radially floating planet carrier secured to an output shaft and to a fixed crown.

Des réducteurs à planétaires, généralement à deux ou trois étages, sont notamment utilisés dans les moteurs tubulaires destinés à l'entraînement de stores, volets roulants ou portes. En raison des jeux nécessaires qu'ils présentent, ces réducteurs sont relativement bruyants.Planetary reducers, generally two or three stages, are used in particular in tubular motors intended for driving blinds, roller shutters or doors. Because of the necessary clearances they present, these reducers are relatively noisy.

On connaît du brevet GB 1 073 535 un engrenage à planétaire dans lequel les satellites sont montés flottant radialement sur le porte-satellites. Cette construction a pour but d'assurer que les satellites s'ajustent d'eux-mêmes aux flancs des dents de la couronne et du pignon planétaire. Un engrenage du même type est également décrit dans la revue "EUREKA TRANSFERS TECHNOLOGY" N° 7 du 11 juin 1991, page 7. Le montage flottant des satellites a ici pour but d'assurer une répartition optimale de la charge entre le planétaire et la couronne et un alignement idéal des dents.GB 1 073 535 discloses a planetary gear in which the satellites are mounted floating radially on the planet carrier. The purpose of this construction is to ensure that the satellites adjust themselves to the flanks of the teeth of the crown and the planetary gear. A gear of the same type is also described in the review "EUREKA TRANSFERS TECHNOLOGY" No. 7 of June 11, 1991, page 7. The purpose of the floating assembly of the satellites is here to ensure an optimal distribution of the load between the planet and the crown and ideal alignment of the teeth.

Du brevet SU 174 481, on connaît en outre un réducteur à planétaire dans lequel l'angle d'engrènement entre le planétaire et les satellites est inférieur à l'angle d'engrènement entre la couronne et les satellites dans le but de limiter la charge sur le porte-satellites.From patent SU 174 481, there is also known a planetary gearbox in which the mesh angle between the sun gear and the satellites is less than the mesh angle between the crown and the satellites in order to limit the load on the planet carrier.

Ces différentes mesures apportent certes des avantages, mais ne réduisent pas le bruit. D'autre part, la capacité de charge des dentures de ces réducteurs n'est pas optimisée.These various measures bring advantages, but do not reduce noise. On the other hand, the load capacity of the teeth of these reducers is not optimized.

Pour parvenir à réduire le bruit ou augmenter la capacité de charge de réducteurs à planétaires, il est connu d'augmenter le rapport de conduite des éléments engrenants en réduisant les jeux de fonctionnement. Cette solution a l'inconvénient d'être coûteuse, en raison de la qualité et de la précision qu'elle nécessite. En effet, il faut que la géométrie et les dimensions des pièces constitutives soient très précises, car les entre-axes, dans ce type de réducteur, sont petits et les axes sont situés sur des supports indépendants les uns des autres. Cette technique a enfin des limites, car un jeu minimum est indispensable pour absorber les dilatations dues aux échauffements. En outre, les pièces constitutives du réducteur étant généralement fabriquées par moulage, un jeu est nécessaire pour absorber le retrait après moulage qui se produit au bout d'un certain temps. Pour y remédier, il faut procéder à un traitement thermique destiné à accélérer ce retrait. Il convient également de tenir compte du fait qu'il est devenu usuel de fabriquer de tels réducteurs en matière plastique et il faut alors tenir compte des gonflements de reprise d'humidité.In order to reduce noise or increase the load capacity of planetary gearboxes, it is known to increase the driving ratio of the gear elements by reducing the operating clearances. This solution has the disadvantage of being expensive, because of the quality and the precision which it requires. Indeed, it is necessary that the geometry and the dimensions of the constituent parts are very precise, because the inter-axes, in this type of reducer, are small and the axes are located on supports independent of each other. This technique has limits, because a minimum clearance is essential to absorb the expansions due to overheating. In addition, the constituent parts of the reducer being generally manufactured by molding, a clearance is necessary to absorb the shrinkage after molding which occurs after a certain time. To remedy this, it is necessary to carry out a heat treatment intended to accelerate this withdrawal. It should also be taken into account that it has become customary to manufacture such plastic reducers and it is then necessary to take account of the swellings of moisture uptake.

Dans le même but il est connu d'utiliser des transmissions à denture hélicoïdale, mais les inconvénients de telles transmissions sont bien connus. Ce sont la génération d'une composante axiale qu'il faut absorber, la génération de forces de frottement préjudiciables au rendement et une fabriction plus délicate et plus coûteuse.For the same purpose, it is known to use transmissions with helical teeth, but the drawbacks of such transmissions are well known. It is the generation of an axial component that must be absorbed, the generation of friction forces detrimental to the yield and a more delicate and costly fabrication.

L'invention vise, d'une part, à réduire le bruit et, d'autre part, à augmenter la capacité de charge du réducteur par des moyens simples, peu coûteux et faciles à maîtriser.The invention aims, on the one hand, to reduce noise and, on the other hand, to increase the load capacity of the reducer by simple means, inexpensive and easy to control.

Le réducteur selon l'invention est caractérisé en ce que les dentures des éléments engrenant sont déportées de telle sorte que la résultante des forces exercées, d'une part entre la couronne et les satellites, et d'autre part, entre les satellites et le planétaire, est dirigée dans une direction préalablement choisie.The reduction gear according to the invention is characterized in that the teeth of the meshing elements are offset so that the result of the forces exerted, on the one hand between the crown and the satellites, and on the other hand, between the satellites and the planetary, is directed in a previously chosen direction.

De cette manière, les satellites sont naturellement plaqués soit contre le planétaire, soit contre la couronne et les rapports de conduite entre les éléments concernés ont une valeure maximale.In this way, the satellites are naturally pressed either against the planet or against the crown and the driving relationships between the elements concerned have a maximum value.

Le bruit étant généré essentiellement entre le planétaire et les satellites du premier étage de ce type de réducteur, le bruit peut être fortement diminué en dirigeant la résultante radiale vers le planétaire.Since the noise is mainly generated between the planet and the first stage satellites of this type of reducer, the noise can be greatly reduced by directing the radial resultant towards the planet.

En dirigeant la résultante radiale vers l'élément le plus fragile, on augmente la capacité de charge du réducteur.By directing the radial resultant towards the most fragile element, the load carrying capacity of the reducer is increased.

Il n'est pas nécessaire de faire appel à une grande précision de réalisation et les jeux de fonctionnement peuvent être notablement limités, étant donné que les satellites sont flottants. Des engrenages à dentures droites peuvent être utilisés. Le même porte-satellites peut recevoir des satellites différents, ce qui permet de réaliser plusieurs rapports de réducteur, c'est-à-dire plusieurs réducteurs.It is not necessary to call for great precision of implementation and the operating clearances can be notably limited, since the satellites are floating. Spur gears can be used. The same planet carrier can receive different satellites, which makes it possible to produce several gear ratios, that is to say several reducers.

Si le réducteur comporte plusieurs étages, il sera généralement judicieux que la résultante radiale soit dirigée vers le planétaire pour le premier étage, le bruit provenant principalement du premier étage tournant à vitesse élevée et vers l'élément le plus fragile, planétaire ou couronne, pour au moins le dernier étage, la capacité de transmission de couple étant limitée par celle du dernier étage. Cette mesure permet à la fois de réduire le bruit et d'augmenter la capacité de transmission du réducteur.If the reducer comprises several stages, it will generally be advisable for the radial resultant to be directed towards the planet for the first stage, the noise mainly coming from the first stage rotating at high speed and towards the most fragile element, planetary or crown, for at least the last stage, the torque transmission capacity being limited by that of the last stage. This measure both reduces noise and increases the transmission capacity of the gear unit.

Selon une forme d'exécution avantageuse de l'invention, le porte-satellites est en forme de barillet comprenant deux flasques dont les faces en regard sont traversées par des raiunures radiales dans lesquels les axes des satellites peuvent coulisser librement. Un tel porte-satellites peut être obtenu de moulage,sans reprise.According to an advantageous embodiment of the invention, the planet carrier is in the form of a barrel comprising two flanges whose opposite faces are crossed by radial grooves in which the axes of the satellites can slide freely. Such a planet carrier can be obtained from molding, without rework.

Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'invention, ainsi qu'une variante de celle-ci.The accompanying drawing shows, by way of example, an embodiment of the invention, as well as a variant thereof.

La figure 1 est une vue en coupe axiale, selon I-I de la figure 2, d'un réducteur à planétaire à trois étages, associé à moteur électrique tubulaire.Figure 1 is an axial sectional view, along I-I of Figure 2, of a planetary gearbox with three stages, associated with tubular electric motor.

La figure 2 est une vue en coupe transversale selon II-II de la figure 1.FIG. 2 is a cross-sectional view along II-II of FIG. 1.

La figure 3 représente les angles de pression de fonctionnement et les force de pression dans le premier étage du récuteur.Figure 3 shows the operating pressure angles and the pressure forces in the first stage of the receiver.

La figure 4 représente les angles de pression de fonctionnement et les forces de pression dans le dernier étage du réducteur.FIG. 4 represents the operating pressure angles and the pressure forces in the last stage of the reducer.

Aux figures 1 et 2, on distingue partiellement un moteur tubulaire comprenant un rotor 1 tournant dans un stator 2 fixé à l'intérieur d'un tube cylindrique 3. Dans ce tube 3 est également monté un réducteur à planétaire à trois étages 4, 5, 6. chacun de ces étages comprend un planétaire 7 autour duquel tournent trois satellites 8, 9, 10 montés dans un porte-satellites 11 et engrenant avec une couronne 12 tubulaire et commune aux trois étages. Cette couronne 12 est fixée au tube 3. Le planétaire 7 du premier étage 4 est constitué par un prolongement du rotor 1, tandis que les planétaires 7 des étages suivants 5 et 6 font partie du porte-satellites 11 de l'étage précédent. Le porte-satellites 11 du troisième étage 6 présente un prolongement 13 constituant l'axe de sortie du réducteur.In FIGS. 1 and 2, a tubular motor is partially distinguished comprising a rotor 1 rotating in a stator 2 fixed inside a cylindrical tube 3. In this tube 3 is also mounted a planetary reducer with three stages 4, 5, 6. each of these stages comprises a sun gear 7 around which rotate three satellites 8, 9, 10 mounted in a planet carrier 11 and meshing with a tubular crown 12 and common to the three stages. This ring 12 is fixed to the tube 3. The sun gear 7 of the first stage 4 is constituted by an extension of the rotor 1, while the sun gears 7 of the following stages 5 and 6 form part of the planet carrier 11 of the preceding stage. The planet carrier 11 of the third stage 6 has an extension 13 constituting the output axis of the reducer.

Chacun des portes-satellites 11 est en forme de barillet se présentant sous la forme de deux plateaux circulaires parallèles 14 et 15 reliés par des entretoises 16, 17, 18 définissant trois logement dans lesquels sont respectivement logés les trois satellites 8, 9, 10. Le porte-satellites 11 présente une portée circulaire 19 coopérant avec le sommet des dents de la denture de la couronne 12 pour centrer approximativement le porte-satellites dans la couronne 12 lors du montage du réducteur afin de faciliter le montage du porte-satellites dans la couronne.Each of the planet carriers 11 is in the form of a barrel in the form of two parallel circular plates 14 and 15 connected by spacers 16, 17, 18 defining three housings in which the three satellites 8, 9, 10 are respectively housed. The planet carrier 11 has a circular surface 19 cooperating with the top of the teeth of the toothing of the crown 12 to approximately center the planet carrier in the crown 12 during mounting of the reduction gear in order to facilitate the mounting of the planet carrier in the crowned.

Les satellites 8, 9, 10, de préférence en matière synthétique, de même que la couronne 12, sont montés chacun libre en rotation sur un axe 20 dont les extrémités 21 et 22 présentent des faces planes parallèles par lesquelles l'axe 20 est engagé dans deux rainures radiales 23 et 24 pratiquées dans chacun des plateaux 14 et 15 du porte-satellites, ces rainures débouchant aussi bien vers l'intérieur que vers l'extérieur des plateaux 14 et 15. Les axes 20 peuvent coulisser librement dans ces rainures, de telle sorte que les satellites 8, 9, 10 sont montés flottant radialement dans leur porte-satellites, les axes 20 des satellites étant toutefois empêchés de tourner de telle sorte que la rotation des satellites se fait entre les satellites et leurs axes.The satellites 8, 9, 10, preferably made of synthetic material, as well as the crown 12, are each mounted free in rotation on an axis 20 whose ends 21 and 22 have parallel flat faces by which the axis 20 is engaged in two radial grooves 23 and 24 made in each of the plates 14 and 15 of the planet carrier, these grooves opening both inwards and outwards from the plates 14 and 15. The axes 20 can slide freely in these grooves, so that the satellites 8, 9, 10 are mounted floating radially in their planet carrier, the axes 20 of the satellites being however prevented from rotating so that the rotation of the satellites takes place between the satellites and their axes.

Les dentures des éléments engrenant du réducteur, c'est-à-dire des planétaires, des satellites et de la couronne sont déportées de telle sorte que pour chacun des satellites, la résultante radiale des forces exercées, d'une part, entre la couronne 12 et le satellite et, d'autre part, entre le satellite et le planétaire 7, soit dirigée vers le planétaire pour le premier étage, qui tourne plus rapidement, et vers l'élément engrenant le plus fragile, en l'occurrence la couronne 12, pour le troisième étage. En ce qui concerne le deuxième étage, ladite résultante pourrait être dirigée soit vers le planétaire, soit vers l'élément engrenant le plus fragile, planétaire ou couronne, selon la priorité donnée à la diminution du bruit ou à l'augmentation de la charge, le fait d'avoir des satellites flottants et une résultante dirigée vers le planétaire ayant pour effet de diminuer le bruit du réducteur, alors que la résultante dirigée vers l'élément engrenant le plus fragile, en l'occurrence la couronne, permet d'augmenter la charge, c'est-à-dire la capacité de transmission du réducteur. Ainsi, les satellites du premier étage 4 sont naturellement plaqués contre le planétaire. Le bruit étant généré essentiellement entre le planétaire et les satellites du premier étage tournant rapidement, il est diminué par la suppression du jeu.The teeth of the meshing elements of the reduction gear, that is to say of the planets, the satellites and the crown are offset so that for each of the satellites, the radial result of the forces exerted, on the one hand, between the crown 12 and the satellite and, on the other hand, between the satellite and the planet 7, is directed towards the planet for the first stage, which rotates faster, and towards the most fragile meshing element, in this case the crown 12, for the third floor. With regard to the second stage, said resultant could be directed either towards the planet, or towards the most fragile meshing element, planetary or crown, according to the priority given to the reduction of noise or to the increase of the load, the fact of having floating satellites and a resultant directed towards the planetary having the effect of reducing the noise of the reducer, while the resultant directed towards the most fragile meshing element, in this case the crown, makes it possible to increase the load, that is to say the transmission capacity of the reducer. Thus, the satellites of the first stage 4 are naturally pressed against the planet. The noise being generated mainly between the planet and the satellites of the first stage rotating rapidly, it is reduced by the elimination of the game.

Les satellites du dernier étage 6 sont par contre plaqués contre la couronne 12 et les angles de conduite entre les satellites et la couronne ont une valeur maximale ce qui permet d'augmenter la capacité de transmission, c'est-à-dire la charge sur l'axe de sortie 13.The satellites of the last stage 6 are on the other hand pressed against the crown 12 and the driving angles between the satellites and the crown have a maximum value which makes it possible to increase the transmission capacity, that is to say the load on the output axis 13.

La figure 3 représente les angles de pression de fonctionnement α et les forces P engendrées par la pression de fonctionnement des dentures les unes dans les autres, pour le premier étage 4. Au sujet des dentures déportées et de l'angle de pression de fonctionnement α on se rapportera par exemple à G. HENRIOT, TRAITE THEORIQUE ET PRATIQUE DES ENGRENAGES et on rappellera que l'angle de pression de fonctionnement α croît si la somme des déports des éléments engrenants est positif et décroît si le déport négatif. Comme on le voit à la figure 3, l'angle α détermine la direction des forces de pression de fonctionnement P1, P1', P1'' entre les satellites et la couronne et P2, P2' et P2" entre les satellites et le planétaire.FIG. 3 represents the operating pressure angles α and the forces P generated by the operating pressure of the teeth in each other, for the first stage 4. About the offset teeth and the operating pressure angle α we will refer for example to G. HENRIOT, THEORETICAL AND PRACTICAL TREATMENT OF GEARS and it will be recalled that the operating pressure angle α increases if the sum of the offsets of the meshing elements is positive and decreases if the negative offset. As seen in Figure 3, the angle α determines the direction of the operating pressure forces P1, P1 ', P1' 'between the satellites and the crown and P2, P2' and P2 "between the satellites and the planet .

Dans le cas de la figure 3, les dentures sont déportées de telle manière, que pour chacun des satellites, la composante radiale R1 de la force P1 est supérieure à la composante R2 de la force P2 c'est-à-dire que la résultante de R1 et R2 est dirigée vers le planétaire 7. De même, R1' est supérieur à R2' et R1'' est supérieur à R2".In the case of FIG. 3, the teeth are offset so that for each of the satellites, the radial component R1 of the force P1 is greater than the component R2 of the force P2, that is to say that the resultant of R1 and R2 is directed towards the planetary 7. Similarly, R1 'is greater than R2' and R1 '' is greater than R2 ".

Ce résultat peut bien entendu être obtenu en déportant toutes les dentures ou une partie de ces dentures seulement.This result can of course be obtained by moving all the teeth or a part of these teeth only.

La figure 4 illustre les angles de pression de fonctionnement et les composantes radiales dans le dernier étage du réducteur. On admet toujours que la couronne 12 constitue l'élément le plus fragile. Dans ce cas, on a R2 supérieur R1, R1' supérieur à R2', R2'' supérieur à R1'', de telle sorte que les satellites flottants 8, 9, 10 sont pressés contre la denture de la couronne 12.Figure 4 illustrates the operating pressure angles and the radial components in the top stage of the reducer. It is always accepted that the crown 12 constitutes the most fragile element. In this case, we have R2 greater R1, R1 'greater than R2', R2 '' greater than R1 '', so that the floating satellites 8, 9, 10 are pressed against the teeth of the crown 12.

Selon une variante d'exécution du porte-satellites, l'axe 20, au lieu d'être maintenu axialement par des rainures, pourrait traverser les deux plateaux 14 et 15 du porte-satellites à travers deux lumières radiales et être maintenu axialement au moyen de circlips.According to an alternative embodiment of the planet carrier, the axis 20, instead of being held axially by grooves, could pass through the two plates 14 and 15 of the planet carrier through two radial slots and be held axially by means of circlips.

L'invention est applicable à un réducteur comportant un seul étage ou un nombre d'étages différent de trois. Dans le cas d'un réducteur à un seul étage, cet étage sera considéré soit comme un premier étage soit comme un dernier étage selon le résultat considéré comme prioritaire.The invention is applicable to a gear unit comprising a single stage or a number of stages other than three. In the case of a reducer with a single stage, this stage will be considered either as a first stage or as a last stage according to the result considered as priority.

Dans le cadre d'un réducteur à plusieurs étages, les étages intermédiaires pourront être réalisés soit comme le premier étage, soit comme le dernier étage selon le résultat considéré comme prioritaire.In the context of a multi-stage reducer, the intermediate stages may be produced either as the first stage or as the last stage depending on the result considered to be a priority.

Claims (7)

Réducteur à planétaire comprenant au moins un étage constitué d'un pignon planétaire d'entrée (7), de satellites (8, 9, 10) montés flottant radialement sur un porte-satellites (11) solidaire d'un arbre de sortie (13) et d'une couronne fixe (12), caractérisé en ce que les dentures des éléments engrenant sont déportées de telle sorte que la résultante radiale des forces exercées, d'une part, entre la couronne et les satellites et, d'autre part, entre les satellites et le planétaire est dirigée dans une direction préalablement choisie.Planetary gearbox comprising at least one stage consisting of an input planetary gear (7), satellites (8, 9, 10) mounted radially floating on a planet carrier (11) secured to an output shaft (13 ) and a fixed crown (12), characterized in that the teeth of the meshing elements are offset so that the radial result of the forces exerted, on the one hand, between the crown and the satellites and, on the other hand , between the satellites and the planet is directed in a previously chosen direction. Réducteur selon la revendication 1, caractérisé en ce que les dentures sont déportées de manière que ladite résultante radiale est dirigée vers le planétaire de manière à réduire le bruit du réducteur.Reducer according to claim 1, characterized in that the teeth are offset so that said radial resultant is directed towards the planet so as to reduce the noise of the reducer. Réducteur selon la revendication 1, caractérisé en ce que les dentures sont déportées de manière que ladite résultante radiale est dirigée vers l'élément engrenant le plus fragile de manière à augmenter la capacité de charge du réducteur.Reducer according to claim 1, characterized in that the teeth are offset so that said radial resultant is directed towards the most fragile meshing element so as to increase the load capacity of the reducer. Réducteur selon la revendication 1, comprenant plusieurs étages (4, 5, 6) comportant chacun un planétaire et un jeu de satellites (8, 9, 10), caractérisé en ce que dans au moins le premier étage les dentures des éléments engrenant sont déportées de manière que ladite résultante est dirigée vers le planétaire et que, dans au moins le dernier étage, les dentures des éléments engrenant sont déportées de telle sorte que ladite résultante est dirigée vers l'élément engrenant le plus fragile.Reducer according to claim 1, comprising several stages (4, 5, 6) each comprising a sun gear and a set of satellites (8, 9, 10), characterized in that in at least the first stage the teeth of the meshing elements are offset so that said resultant is directed towards the planet and that, in at least the last stage, the teeth of the meshing elements are offset so that said resultant is directed towards the most fragile meshing element. Réducteur selon l'une des revendications 1 à 4, caractérisé en ce que le porte-satellites (11) est en forme de barillet comprenant deux flasques (14, 15) dont les faces en regard sont traversées par des rainures radiales (23, 24) dans lesquels les axes (20) des satellites peuvent coulisser librement.Reducer according to one of claims 1 to 4, characterized in that the planet carrier (11) is in the form of a barrel comprising two flanges (14, 15) whose opposite faces are crossed by radial grooves (23, 24 ) in which the axes (20) of the satellites can slide freely. Réducteur selon la revendication 5, caractérisé en ce que les axes (20) des satellites présentent, au moins à l'une de leurs extrémités, des méplats (21) coopérant avec les flancs de la rainure (23) pour empêcher les axes de tourner avec les satellites.Reducer according to claim 5, characterized in that the axes (20) of the satellites have, at least at one of their ends, flats (21) cooperating with the sides of the groove (23) to prevent the axes from turning with satellites. Réducteur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les portes-satellites présentent une portée cylindrique (19) de centrage dans la couronne (12).Reducer according to any one of claims 1 to 6, characterized in that the planet carriers have a cylindrical bearing surface (19) for centering in the crown (12).
EP93810640A 1992-09-16 1993-09-09 Planetary reduction gearing Expired - Lifetime EP0588769B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9211034A FR2695700B1 (en) 1992-09-16 1992-09-16 Planetary reducer.
FR9211034 1992-09-16

Publications (3)

Publication Number Publication Date
EP0588769A1 true EP0588769A1 (en) 1994-03-23
EP0588769B1 EP0588769B1 (en) 1997-03-05
EP0588769B2 EP0588769B2 (en) 2005-03-23

Family

ID=9433564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810640A Expired - Lifetime EP0588769B2 (en) 1992-09-16 1993-09-09 Planetary reduction gearing

Country Status (8)

Country Link
US (1) US5429558A (en)
EP (1) EP0588769B2 (en)
JP (1) JP3559055B2 (en)
KR (1) KR100312234B1 (en)
AT (1) ATE149650T1 (en)
DE (1) DE69308437T3 (en)
ES (1) ES2050648T1 (en)
FR (1) FR2695700B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619416A1 (en) 2004-07-22 2006-01-25 Eickhoff Maschinenfabrik GmbH Compound ring gear
WO2008105815A2 (en) 2006-08-22 2008-09-04 Rolls-Royce North American Technologies, Inc. Gas turbine engine with intermediate speed booster
WO2009156267A2 (en) * 2008-06-24 2009-12-30 Mahle International Gmbh Actuator
ITPN20080086A1 (en) * 2008-11-21 2010-05-22 Nice Spa "MECHANICAL REDUCER FOR TUBULAR MOTORS"
EP2395262A1 (en) 2010-06-11 2011-12-14 Nice S.P.A. Epicyclic gearbox for tubular motors
FR3076120A1 (en) * 2017-12-26 2019-06-28 Bontaz Centre R & D MOTOREDUCER WITH REDUCED SIZE

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695700B1 (en) * 1992-09-16 1994-11-18 Somfy Planetary reducer.
SE9302907L (en) * 1993-09-08 1995-02-20 Gustav Rennerfelt Eccentric gear and method for producing such gear
JP3334302B2 (en) * 1993-12-22 2002-10-15 株式会社デンソー Method of manufacturing starter having planetary gear reduction mechanism
US5662545A (en) * 1996-02-22 1997-09-02 The Toro Company Planetary gear drive assembly
WO1999018369A1 (en) * 1997-10-07 1999-04-15 Interroll Holding Ag A drum motor
US5954608A (en) * 1998-05-11 1999-09-21 Borg-Warner Automotive, Inc. Drive speed control system utilizing inflatable bladders
US6206800B1 (en) 1998-08-21 2001-03-27 Thomson Industries, Inc. Universally adaptable carrier and swing arm for planetary gear assembly
DE10110282A1 (en) * 2001-03-02 2002-09-05 Maxon Motor Gmbh planetary gear
US7775595B2 (en) * 2004-02-06 2010-08-17 Schukra Of North America Drive mechanism
FR2872238B1 (en) * 2004-06-24 2007-10-12 Radio Electr Et Mecanique Sire IMMEDIATE REDUCER FOR SWIMMING POOL COVER ROLLER
CN100545000C (en) 2004-07-30 2009-09-30 L&P产权管理公司 Modular lumbar support apparatus
DE102004047393A1 (en) * 2004-09-29 2006-04-06 Webasto Ag The blind assembly
US20060122027A1 (en) * 2004-12-03 2006-06-08 Dalenberg Scott R Automatic transmission and gear train
US7389806B2 (en) * 2005-02-24 2008-06-24 Lawrence Kates Motorized window shade system
US20060232233A1 (en) 2005-04-01 2006-10-19 Adams Jason O Drive assembly for a motorized roller tube system
US20060232234A1 (en) 2005-04-01 2006-10-19 Newman Robert C Jr Motorized roller tube system having dual-mode operation
KR20070099017A (en) * 2005-04-28 2007-10-08 나미키 세이미츠 호오세키 가부시키가이샤 Motor shaft for micromotor, and micromotor
WO2006132478A1 (en) * 2005-06-04 2006-12-14 Surnex Co. Ltd. Screen driver apparatus and control apparatus for motor applied thereof
JP4899083B2 (en) * 2005-08-29 2012-03-21 Ｓｍｃ株式会社 Automatic reduction ratio switching device
US20070060440A1 (en) * 2005-08-31 2007-03-15 Pao-Ling Lee Speed reduction system for generating high torque
CN100402887C (en) * 2006-03-31 2008-07-16 合肥波林新材料有限公司 Floating load balancing mechanism for planet wheels and speed reducer thereof
US7686614B2 (en) * 2006-05-26 2010-03-30 Dentsply International Inc. Dental handpiece drive train with non-intersecting axes
US7984949B2 (en) 2007-04-24 2011-07-26 Schukra Of North America Lumbar and bolster support for second row seat
US20090082168A1 (en) * 2007-09-24 2009-03-26 Jen-Yen Yen Speed change gear mechanism for hand-driven power generator
US20090308543A1 (en) * 2008-06-13 2009-12-17 Lawrence Kates Motorized window shade system and mount
TWI387693B (en) * 2008-10-13 2013-03-01 Metal Ind Res & Dev Ct Power transmission device
TWI425154B (en) * 2009-06-23 2014-02-01 Metal Ind Res & Dev Ct Concentric alignment planetary gear set and power transmission
JP5696340B2 (en) * 2010-10-06 2015-04-08 日本電産シンポ株式会社 Sheet shutter drive device
DE102011089021A1 (en) * 2011-12-19 2013-06-20 Zf Friedrichshafen Ag Transmission device with an internally toothed ring gear and two meshing spur gears
US9428955B2 (en) 2013-03-15 2016-08-30 Jacob Fleischman Retractable wall system
US10273750B2 (en) 2013-03-15 2019-04-30 Jacob Fleischman Roll-up wall system and modular components
EP2971853B1 (en) 2013-03-15 2017-08-23 Springs Window Fashions LLC Window covering motorized lift and control system motor and operation
RU2536645C1 (en) * 2013-07-02 2014-12-27 Открытое акционерное общество "Научно-производственное объединение "Сатурн" Bench-type reduction gear unit for testing of engines
US9531238B2 (en) * 2013-07-23 2016-12-27 Raytheon Company Modular actuation device for an aerodynamic control surface of a missile
CA2949089C (en) 2014-05-15 2022-10-04 Joel Klein Roll-up wall and acoustic barrier system
JP6533647B2 (en) * 2014-06-30 2019-06-19 日本電産コパル株式会社 Geared motor
DE102014213145A1 (en) * 2014-07-07 2016-01-07 Schaeffler Technologies AG & Co. KG Planetary gear with operating angle modification and high-speed drive with the planetary gear
CN105715746A (en) * 2015-05-15 2016-06-29 张秘来 Speed change planet shaft transmission system
JP6481656B2 (en) * 2015-05-21 2019-03-13 富士ゼロックス株式会社 Planetary gear mechanism and image forming apparatus
CN105422812B (en) * 2015-12-04 2018-05-15 北京华航无线电测量研究所 A kind of oil borehole geophone driving mechanism
DE102015122813A1 (en) * 2015-12-23 2017-06-29 Rolls-Royce Deutschland Ltd & Co Kg Planetary gear device and jet engine with a planetary gear device
WO2018200875A1 (en) 2017-04-26 2018-11-01 Joel Klein Modular roll-up wall system
DE102019207095A1 (en) * 2019-05-16 2020-11-19 Zf Friedrichshafen Ag Torque compensation with a flexible planetary bolt
CN110486424A (en) * 2019-09-19 2019-11-22 广东肇庆爱龙威机电有限公司 Planetary Gear Transmission case
FR3113425B1 (en) * 2020-08-14 2022-07-22 Bontaz Centre R & D FLUID DISPENSER WITH IMPROVED OPERATION

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159718B (en) * 1960-10-10 1963-12-19 Heinrich Desch G M B H Epicyclic gears with several sets of epicyclic gears arranged one behind the other
GB1073535A (en) * 1964-10-21 1967-06-28 Inst Fordertechnik Leipzig Epicyclic gearing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT228584B (en) * 1961-12-22 1963-07-25 Simmering Graz Pauker Ag Spur gear planetary gear
DE3338417C1 (en) * 1983-10-22 1985-04-18 Daimler-Benz Ag, 7000 Stuttgart Planetary gear auxiliary gear for a motor vehicle
US4901601A (en) * 1988-11-14 1990-02-20 General Motors Corporation Planetary carrier assembly and method
JP2897311B2 (en) * 1989-02-22 1999-05-31 セイコーエプソン株式会社 Small reducer
JPH0786379B2 (en) * 1990-06-05 1995-09-20 伊東電機株式会社 Inscribed planetary gear reducer
FR2695700B1 (en) * 1992-09-16 1994-11-18 Somfy Planetary reducer.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1159718B (en) * 1960-10-10 1963-12-19 Heinrich Desch G M B H Epicyclic gears with several sets of epicyclic gears arranged one behind the other
GB1073535A (en) * 1964-10-21 1967-06-28 Inst Fordertechnik Leipzig Epicyclic gearing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DAVALL: "Sliding Planet Gears provide optimum Load Sharing", EUREKA TRANSFERS TECHNOLOGY, no. 7, 11 June 1991 (1991-06-11), HORTON KIRBY, KENT, GB, pages 7 *
Extrait de Brevet Russe ( DERWENT ) & SU-A-174481 ( DRUZHININ ) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619416A1 (en) 2004-07-22 2006-01-25 Eickhoff Maschinenfabrik GmbH Compound ring gear
WO2008105815A2 (en) 2006-08-22 2008-09-04 Rolls-Royce North American Technologies, Inc. Gas turbine engine with intermediate speed booster
WO2009156267A2 (en) * 2008-06-24 2009-12-30 Mahle International Gmbh Actuator
WO2009156267A3 (en) * 2008-06-24 2010-03-04 Mahle International Gmbh Actuator
ITPN20080086A1 (en) * 2008-11-21 2010-05-22 Nice Spa "MECHANICAL REDUCER FOR TUBULAR MOTORS"
EP2189684A1 (en) * 2008-11-21 2010-05-26 NICE SpA Gearmotor for an actuator for blinds
EP2395262A1 (en) 2010-06-11 2011-12-14 Nice S.P.A. Epicyclic gearbox for tubular motors
FR3076120A1 (en) * 2017-12-26 2019-06-28 Bontaz Centre R & D MOTOREDUCER WITH REDUCED SIZE
WO2019129984A1 (en) * 2017-12-26 2019-07-04 Bontaz Centre R & D Compact gear motor

Also Published As

Publication number Publication date
EP0588769B1 (en) 1997-03-05
FR2695700B1 (en) 1994-11-18
DE69308437T3 (en) 2005-12-15
DE69308437D1 (en) 1997-04-10
DE69308437T2 (en) 1997-09-18
KR100312234B1 (en) 2002-02-19
ES2050648T1 (en) 1994-06-01
EP0588769B2 (en) 2005-03-23
FR2695700A1 (en) 1994-03-18
JP3559055B2 (en) 2004-08-25
US5429558A (en) 1995-07-04
ATE149650T1 (en) 1997-03-15
KR940007403A (en) 1994-04-27
JPH06213286A (en) 1994-08-02

Similar Documents

Publication Publication Date Title
EP0588769B1 (en) Planetary reduction gearing
FR2816386A1 (en) Electric motor actuator for a motor vehicle gearbox is mounted inside the selector drum
FR2647174A1 (en) EXTERNAL CONTROL BLOCK DIFFERENTIAL
EP3449157A1 (en) Cycloidal reducer with helical toothing for power steering
FR2721453A1 (en) Electric motor-transmission assembly, in particular for driving road vehicles.
FR2708068A1 (en) Continuously variable friction transmission.
FR2780213A1 (en) Compact electric drive unit for automobile
EP1208317A1 (en) Drive unit for a vehicle with a continuously variable transmission
FR2634848A1 (en) CONTINUOUS VARIATION TRANSMISSION WITH FLAT BELT
WO2017068258A1 (en) Heat engine comprising a system for varying the compression ratio
FR2712366A1 (en) Reduction gear with internal planetary gear for office photocopiers
FR2694357A1 (en) Differential.
EP0202173B1 (en) Device for reducing the radial backlash between meshing trethof gears and application of the same in a reduction gearing &#34;without backlash&#34;
EP2182244B1 (en) Actuator for a home automation screen and locking installation or sun protection installation comprising such an actuator.
EP3850243A1 (en) Mechanical reduction gearing and associated geared motor
FR2680401A1 (en) DIFFERENTIAL MECHANISM FOR MOTOR VEHICLE.
FR2963398A1 (en) PLANETARY TRANSMISSION COMPRISING A SOLAR WHEEL AND A SATELLITE HOLDER
FR2609499A1 (en) Motorised propulsion unit with continuous speed variation
FR3105812A1 (en) Nested gear train with two sun gears
EP0733832A1 (en) Self-locking differential gear
FR2613449A1 (en) Speed reducing or multiplying device and robot equipped with this device
EP4339099A1 (en) Speed reducer for a device for driving a wheel of an aircraft landing gear
EP3085995B1 (en) Gear motor, in particular for driving the arms of a motor-vehicle windscreen wiper
FR2638500A1 (en) Self-locking differential with epicycloid gear train
FR2704038A1 (en) Mechanical device for reducing and varying rotational speed.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES GB IT LI NL SE

REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2050648

Country of ref document: ES

Kind code of ref document: T1

17P Request for examination filed

Effective date: 19940606

17Q First examination report despatched

Effective date: 19950510

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970305

Ref country code: GB

Effective date: 19970305

Ref country code: AT

Effective date: 19970305

REF Corresponds to:

Ref document number: 149650

Country of ref document: AT

Date of ref document: 19970315

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69308437

Country of ref document: DE

Date of ref document: 19970410

ITF It: translation for a ep patent filed

Owner name: 0508;02MIFBUGNION S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970605

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19970305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970924

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: HEYNAU ANTRIEBSTECHNIK GMBH

Effective date: 19971205

BERE Be: lapsed

Owner name: SOMFY

Effective date: 19970930

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APBY Invitation to file observations in appeal sent

Free format text: ORIGINAL CODE: EPIDOSNOBA2O

APCA Receipt of observations in appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNOBA4O

APBI Information on receipt of observation in appeal deleted

Free format text: ORIGINAL CODE: EPIDOSDOBA4O

APBY Invitation to file observations in appeal sent

Free format text: ORIGINAL CODE: EPIDOSNOBA2O

APCA Receipt of observations in appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNOBA4O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SOMFY SAS

27A Patent maintained in amended form

Effective date: 20050323

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE ES GB IT LI NL SE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19970910

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090923

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100909

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110928

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130403

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69308437

Country of ref document: DE

Effective date: 20130403